एपीए उद्धरण

Mehra, J. (1974). Einstein, Hilbert and the theory of gravitation. D Reidel.

शिकागो स्टाइल उद्धरण

Mehra, Jagdish. Einstein, Hilbert and the Theory of Gravitation. Dordecht: D Reidel, 1974.

एमएलए उद्धरण

Mehra, Jagdish. Einstein, Hilbert and the Theory of Gravitation. D Reidel, 1974.